+* API: willStartSearchOperation:forString:isFullSearch: in PSPDFSearchOperationDelegate is now optional.

+* API: PSPDFDocument now implements PSPDFDocumentProviderDelegate and also is set as the default delegate.

+* API: PSPDFDocumentDelegate now has methods for didSaveAnnotations and failedToSaveAnnotations.

+* API: removeCacheForDocument:deleteDocument:waitUntilDone: is now removeCacheForDocument:deleteDocument:error: - use dispatch_async to make the call async.

+* API: tabbedPDFController:willChangeVisibleDocument: has been renamed to tabbedPDFController:shouldChangeVisibleDocument:

+* Fixes a bug where annotations were not saved correctly on multi-file documents when saving into external file was used. You need to delete the annotations.pspdfkit file in /Library/PrivateDocuments/UID to update to the new saving version (PSPDFKit still first tries to read that file to be backwards compatible)

+* Fixes freezing if there are A LOT of search results. They are not limited to 600 by default. This can be changed in PSPDFSearchViewController, see maximumNumberOfSearchResultsDisplayed.

+* Fixes a issue where similar PDF documents could create a equal UID when initialized via NSData.

+* Fixes "jumping" of the annotation toolbar when the default toolbar style was used.